简易乐曲发生器VHDL代码Quartus AX301开发板

名称：Quartus简易乐曲发生器VHDL代码AX301开发板

软件：Quartus

语言：VHDL

代码功能：

12、简易乐曲发生器

利用音名与频率的关系制作简易乐曲发生器，要求能循环播放一首乐曲，并显示乐曲演奏时对应的音符。

FPGA代码Verilog/VHDL代码资源下载：www.hdlcode.com

本代码已在AX301开发板验证，开发板如下，其他开发板可以修改管脚适配：

设计文档：

1. 工程文件

2. 程序文件

3. 程序编译

4. 管脚分配

5. RTL图

6. Testbench

7. 仿真图

整体仿真图

频率控制字产生模块

音乐控制模块

显示模块

部分代码展示:

LIBRARY?ieee;
???USE?ieee.std_logic_1164.all;
--音乐播放器
ENTITY?music?IS
???PORT?(
??????sysclk??????:?IN?STD_LOGIC;--50M晶振
??????stop_key????:?IN?STD_LOGIC;--reset
??????start_key???:?IN?STD_LOGIC;--开始
??????led?????????:?OUT?STD_LOGIC;--指示灯
??????spkout??????:?OUT?STD_LOGIC;--蜂鸣器输出
??????bit_select??:?OUT?STD_LOGIC_VECTOR(5?DOWNTO?0);--数码管位选
??????seg_select??:?OUT?STD_LOGIC_VECTOR(7?DOWNTO?0)--数码管段选
???);
END?music;
ARCHITECTURE?trans?OF?music?IS
???COMPONENT?music_ctrl?IS
??????PORT?(
?????????sysclk??????:?IN?STD_LOGIC;
?????????stop_key????:?IN?STD_LOGIC;
?????????start_key???:?IN?STD_LOGIC;
?????????tonecode????:?OUT?STD_LOGIC_VECTOR(7?DOWNTO?0);
?????????tonestep????:?IN?STD_LOGIC_VECTOR(9?DOWNTO?0);
?????????led?????????:?OUT?STD_LOGIC;
?????????spkout??????:?OUT?STD_LOGIC
??????);
???END?COMPONENT;
???
???COMPONENT?display?IS
??????PORT?(
?????????clk?????????:?IN?STD_LOGIC;
?????????tonecode????:?IN?STD_LOGIC_VECTOR(7?DOWNTO?0);
?????????bit_select??:?OUT?STD_LOGIC_VECTOR(5?DOWNTO?0);
?????????seg_select??:?OUT?STD_LOGIC_VECTOR(7?DOWNTO?0)
??????);
???END?COMPONENT;
???
???COMPONENT?musicdec?IS
??????PORT?(
?????????tonecode????:?IN?STD_LOGIC_VECTOR(7?DOWNTO?0);
?????????tonestep????:?OUT?STD_LOGIC_VECTOR(9?DOWNTO?0)
??????);
???END?COMPONENT;
???
???
???SIGNAL?tonestep?????????:?STD_LOGIC_VECTOR(9?DOWNTO?0);
???SIGNAL?tonecode?????????:?STD_LOGIC_VECTOR(7?DOWNTO?0);
???SIGNAL?music_num????????:?STD_LOGIC_VECTOR(3?DOWNTO?0);
???
???SIGNAL?clk_valid????????:?STD_LOGIC;
???
???SIGNAL?led_buf????????:?STD_LOGIC;
BEGIN
???clk_valid?<=?sysclk;
????
?--频率控制字产生模块
???u_musicdec?:?musicdec
??????PORT?MAP?(
?????????tonecode??=>?tonecode,--输入简谱
?????????tonestep??=>?tonestep--输出频率控制字
??????);
???
???
???--音乐控制模块
???i_music_ctrl?:?music_ctrl
??????PORT?MAP?(
?????????sysclk?????=>?sysclk,
?????????start_key??=>?start_key,
?????????stop_key???=>?stop_key,
?????????tonecode???=>?tonecode,--简谱
?????????tonestep???=>?tonestep,--频率控制字
?????????spkout?????=>?spkout,
?????????led????????=>?led
??????);
???
???
???--显示模块
???i_display?:?display
??????PORT?MAP?(
?????????clk?????????=>?sysclk,
?????????tonecode????=>?tonecode,
?????????bit_select??=>?bit_select,--数码管位选
?????????seg_select??=>?seg_select--数码管段选
??????);
???
END?trans;

点击链接获取代码文件：http://www.hdlcode.com/index.php?m=home&c=View&a=index&aid=340